Of which region is it true that islam spread especially among merchants, to inclusion in a major islamic trading network, rather than by conquest and islamic rule?

The five extra days added to the egyptian calendar were for?

Match the artists with his technique or to his work. 1 . michelangelo the illusion of depth 2 . giotto perspective and chiaroscuro 3 . raphael "the last supper" 4 . velazquez "sistine madonna" 5 . holbein "david" 6 . masaccio portrait of henry viii 7 . van eyck flemish painter 8 . da vinci spanish painter

Who was the 2nd president of the united states?